Here's how I was able to get the widgets to behave themselves...
First, a description of the problem.
Second, how I solved it. Hope it helps other folks. This forum has been immensely helpful to me, and I'm glad that I can finally return the favor.
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First, a description of the problem:
I'm running Wordpress 2.1.3 (I haven't upgraded because of compatibility issues with some of the other widgets I'm running)
Yesterday, widgets were running fine.
Suddenly today, widgets were no longer running fine. In particular, as described above, I was getting the following symptoms:
In Firefox: In Presentation - Sidebar Widgets, the little icon on the right side of each widget -- the one you press to configure it -- had simply disappeared for all the widgets. No way to configure any of the widgets.
In Safari: Same as Firefox.
In IE6: The icon appeared, but only worked sporadically to allow me to configure each widget.
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Secondly, how I solved it:
I noticed that I was running an earlier version of the Sidebar Widgets plugin (version 1.0.something).
I simply went to http://automattic.com/code/widgets/ and re-installed the Sidebar Widgets plugin for Wordpress 2.1.x provided on that page. The version of the Sidebar Widgets plugin appears to be 1.2.1.20070210b
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Further comments:
a) I believe this fix will only work if you're also using Wordpress 2.1.x.
b) If you're using Wordpress 2.0.x, it will probably work to re-install the Sidebar Widgets plugin for Wordpress 2.0.x, also provided at http://automattic.com/code/widgets/
c) If you're using Wordpress 2.2 or later, I don't know what the solution would be, as the Sidebar Widgets plugin is, as I understand it, included in the install.